×

Method and apparatus for hierarchical assignment of rights to documents and documents having such rights

  • US 20050187877A1
  • Filed: 04/22/2005
  • Published: 08/25/2005
  • Est. Priority Date: 05/31/2001
  • Status: Active Grant
First Claim
Patent Images

1-21. -21. (canceled)

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×